Gravel washing machine



llg. 16, 1932. E11 B'URNSIDE I LSTLSSB GRAVEL WASHING MACHINE Aug. 16,'i932.

E. T. BURNSlDE GRAVEL WASHING MACHINE Filed April 12, 1930 2.Sheets-sheet 2 Patented Aug. 16, 1932 srATEs PA :snGnnILL fr.istrnnsrnn, on snnmvvittninnmua snavel. WASHING ivrAcninn Y YApplcationlled April 12, ISSV'VSeraIVNO. 443,189.0.-

Referring to the accompanying 'drawings which are made a part hereof'andon whichl similar reference characters indicate similar parts,

Figure l indicates a longitudinal section of the device,

igure 2 a. section on line 2 2 of Figure l, an

Figure 3 a plan viewrof a portion of the device.

In the drawings numeral l0 indicates a tank which preferably has asloping side 1l. Into one side of the tank projects a supply chute l2for the material to be washed and number 13 indicates an outlet chutefor the dirt which is washed out of the gravel or other material whichis cleaned. rlhe top of the outlet chute is slightly below the level ofthe inlet chute Vas shown in Figure 2. Suitably mounted in bearingsonthe frameof an endless conveyor 16. rIhis conveyor consists of anumber of sections having side portions 17 and end portions 18 whichportions are secured together by means of hinged joints 19 to provide achain-like scraper conveyor.. The conveyor is driven by means of a belt2O operating on a pulley 2l. Any other suitable driving mechanism may beprovided for operating the conveyor7 that shown being one of severalsuitable conveyors. The roller l5 preferably is provided with a numberof gears 22 which engage the hinge portions of the conveyor in order todrive it. The Vchute l2 delivers into a. chute 23 which confinesmaterial so that it falls near the center of the box l() so as to bepicked up by the scraper conveyors and delivered up the outy let sidellto a suitable receptacle not shown. Positioned beneath the stream andsomewhat to one side of the stream of incoming gravel the tank arerollers 14 and l5 which carry' lis aipipe 241:` having a slot2positioned vto direct a stream ofwatervagainst the falling*-y gravel,Ythe ,force of `the streaml tendingto drive trash and `'dirt which mayaggregate with the gravel toward the outletchute13.155.. The pipe 24isconnecte'd to afsource of water i under pressure suflicientto give thenecessary' force to the stream of water as it is projected againstthefalling gravel'.v F rom the Vfore-y going description-itV will vbeV,clearV that 'the' 60....l

trash vand other impurities whichvmayl be mixed withthe gravel arevforcedrin the direction of the outletso that'incasethis ma! terialwould not float, it nevertheless would be driven to the point atjwhichit will be o5.

caught in the stream Aofv water 'liowing out ofthe tank.

A Whilel have describedthis apparatus as applied to the washing ofgravelfor concrete A and similar'uses Il do not vlimit it to the 70V. specicYart with which it has been described. It should be obvious that themachine could be used for many other purposes, such for eX- ample, aswashing berries and fruits in which l the trash would be washed upthrough the body `of water and the solid portions of fruit c allowedv tosettle inthe bottom of the tank Y land be conveyed out to al receptacleor to someother machine in which they are treated or to some otheroperation which may be 8o'. i Y

performed upon them. The machine mayV also be found of particularutility in preparingl vegetables such as peas and similar. verge tablesfor canning, from which it is necessary to separate trash and defectiveor small Si` peas from the solid ones. y c

It will be obvious to those skilled in the art that various changes maybe made inmy device without departing from the spirit of the inventionand therefore Ido not limit myself to what is shown in the drawings anddescribed in the specification but only as in# dicated in the appendedclaims.

Having thus fully describedvmy said in- Y vention, what I yclaim .as newand desire to secure by Letters Patent is: c

l. A gravel cleaning machine comprising a tank having a sloping bottom,la conveyorV comprising a series of scoops movable through the tank tomove the gravel'along; lo

said sloping bottom andlout of the tank, a

Ygravel inlet chute at one side of the tank, a vpipe beneath said chutehaving an upwardly directed slot to direct water upwardly through theincoming gravel, a pair of guide partitions for directing the gravelinto the path offvvater from said ppein the tank` and into the path ofthe conveyor, and 'anout-v l' let chute positioned opposite the inletchute -for carrying 0E Water and light material Washed out of ,thekgravel,"substantiallyas-set l forth. Y

sof

2. A gravel cleaning machine'fcomltiri'sing f` a tank having a sloping.bottoma Conveyor movable through the tankto move the vv'ashed gravelalong said sloping `bottom and out of Y the tank,va gravel inletchute atone side of the tank,` apipe beneath-said vchute .having a slot todirect VWater upwardly through the incoming gravel, a pair of guidepartitions for-.f

directing the gravel toward a central place in the Vtank throughtheflowof Water from said pipe and in the path'of theconveyor, an-

outletV Y chute f positioned opposite the .inlet Ychute for carrying offWater and material Washedaout not the'V gravel, andan inclined baffleplateV secured in the tank adjacent theV outlet chuteandl above Vsaidconveyor ordi- Y recting Water and trash LWashed out ofthe gravelupvvardlytovvard saidV outlet chute, Y

substantially as-set forth. Y,

In Witness whereof,

EDGEHILD T: BiinNslIDE..

50fjA

